Daivari grew up admiring Mick Foley and Bret Hart. His childhood hero was Shawn Michaels. He participated in his first professional wrestling match at age 15.[3] He started his career in the upper midwest independent scene. He is known for representing Iran for international title matches

Daivari signed a contract with World Wrestling Entertainment in August 2004[3] and debuted on the December 13 edition of Raw alongside Muhammad Hassan as "Khosrow Daivari", later shorten to Daivari.[11] Their gimmick was that of two Arab-Americans who were tired of the prejudice and racism they were receiving after the 9/11 attacks. In the weeks leading up to their debut, the two men would appear on Raw in vignettes promoting their hatred towards "America". In the following weeks, they would back up their words with actions, initiating a feud with Raw announcers Jim Ross and Jerry "The King" Lawler.[12][13] At WrestleMania 21 on April 3, 2005, Daivari and Hassan were involved in a storyline with returning WWE legend Hulk Hogan.[14] While attacking injured wrestler Eugene, Hogan made his classic entrance and ejected both men from the ring to the delight of fans in attendance. Ironically, Daivari would scream instructions in Persian to Hassan when working as his manager, though this was often described as "Arabic" on broadcasts.

The following night on Raw, Daivari and Hassan interrupted Shawn Michaels during a promo. The two attacked Michaels and left him helpless in the ring. This led to Daivari's first singles match in WWE, on the April 11, 2005 edition of Raw. Although Michaels was heavily favored, Daivari, with help from Hassan, got the upset win. Enraged, Michaels demanded a match against both Daivari and Hassan. RawGeneral ManagerEric Bischoff refused to grant a handicap match but instead ordered Michaels to find a partner. That partner turned out to be Daivari and Hassan's WrestleMania foe Hulk Hogan.

On the April 18, 2005 episode of Raw, Michaels was once again double teamed by Daivari and Hassan until Hogan appeared to make the save.[15] Hogan accepted Michaels' offer to tag and the match was set for the Backlash pay per view on May 1, 2005.[16] At Backlash, Hogan and Michaels picked up the win which led to friction between the two since Hassan blamed Daivari for the loss. The next night on Raw, Hassan verbally and physically attacked Daivari leaving their future as a team in question.[17]

Both Daivari and Hassan were later drafted to SmackDown! on June 23, 2005 as part of a package deal.[18] On the July 7, 2005 episode of SmackDown!, GM Theodore Long put Daivari in a match that night against The Undertaker, and Muhammad Hassan in a match against The Undertaker at The Great American Bash.[19][20] Daivari was squashed easily in that match, after which Hassan began to pray on the ramp, summoning five masked men to the ring. The masked men beat and strangled the Undertaker into submission, and Hassan put him in the camel clutch. Afterward, the masked men carried Daivari off like a martyr. The controversial imagery aired unedited in North America despite the terrorist attacks in London earlier that day, but was removed from the Australian and UK broadcasts. (It should be noted that this edition of SmackDown! was unusually taped on Monday and, at the time, aired on Thursday, so the skit was taped 3 days before the attack occurred).

In late-July, UPN requested that WWE keep Muhammad Hassan off of their network. WWE complied, effectively removing him from SmackDown! At The Great American Bash 2005, after Hassan lost in a match with The Undertaker, Hassan was given the Last Ride through an open stage ramp onto a concrete floor.[20] It was reported that he sustained serious injuries and had to be rushed to a nearby medical facility; this was an angle aimed to "kill off" the character.

Although Hassan would eventually retire from professional wrestling, Daivari reported to WWE's Deep South Wrestling territory for training and repackaging. He returned from Deep South and, after working in Minneapolis, made his debut in September 2005 on OVW TV returning as his "Sheik" Daivari persona.

On November 7, 2005, Daivari returned to Raw, acting as Kurt Angle's anointed special guest referee in the tag team match between Shawn Michaels and John Cena versus Angle and Chris Masters. During the match, Daivari favored Angle and Masters, who won the match via disqualification when Michaels was caught with a chair Angle brought in.

On the January 13, 2006, edition of WWE Friday Night SmackDown!, Angle and Daivari jumped to SmackDown!, where Angle won the World Heavyweight Championship the very same night.[24] Angle later revealed that his contract on Raw had expired, which allowed them to switch brands. Angle was already signed to face Shawn Michaels on Raw, however this non-title match went ahead, but Daivari would accidentally cost Angle the match against Michaels. Afterwards, Daivari and Angle argued, but when Daivari slapped Angle, he was Angle Slammed over the ropes and down to the floor on the outside of the ring. During the break on WWE.com Unlimited, an enraged Angle made it known that Daivari's services were no longer needed.

A short time later, Daivari faced his former client in a match. During the match, Mark Henry, the number one contender for Angle's title, attacked Angle. After the match, Daivari officially announced that he was now managing Henry and continued to manage Henry during his feud with The Undertaker. Daivari would disappear off television in the weeks leading up to WrestleMania 22 when, at WWE's Saturday Night Main Event, Daivari suffered a chokeslam and Tombstone Piledriver at the hands of The Undertaker onto the lid of a casket.

On the April 7, 2006 edition of SmackDown!, Daivari made his return bringing in the debuting The Great Khali to attack The Undertaker during his match with Mark Henry.[25] The next week, Daivari officially presented him to the crowd, hyping him as an unstoppable monster. Over the following weeks, Daivari would accompany Khali to the ring as he destroyed various SmackDown! superstars. This would all lead up to a match with The Undertaker at Judgment Day on May 21, 2006, which Khali would end up winning. Daivari and Khali appeared as guests on Piper's Pit on the June 2, 2006 edition of SmackDown!, in which Piper made fun of Khali, who supposedly can't speak English.[26] Eventually Piper stood on the bottom rope, attempting to match height with Khali, he managed to say: If this was twenty years ago, before Khali grabbed him by the throat. Daivari made Khali put Piper down and straitened Piper's jacket disrespectfully, Piper slapped Daivari, but was then given a chop by Khali. The Undertaker was the original guest on the Pit, but he declined the invitation a few days before. Daivari continued to accompany The Great Khali to the ring when Khali wrestled or attacked other wrestlers, but when The Great Khali became inactive due to injury, Daivari was taken off the road as well.

Daivari and The Great Khali were moved to the ECW brand officially when they made their ECW debuts on the October 31, 2006 edition of ECW on Sci Fi. Daivari beat "The Reject" Shannon Moore in a very quick match.[27] Daivari's original theme music was used as well as his Persian rants on the microphone. Afterwards, Moore was manhandled by The Great Khali.[27] Daivari continued his ECW winning streak over the next several weeks with The Great Khali usually following up the contest with a chokebomb on Daivari's opponent. At December to Dismember, Daivari got a victory over Tommy Dreamer following a schoolboy rollup.[28] Dreamer then chased Daivari all the way to the back then, The Great Khali appeared and caught Dreamer, planting him on the steel ramp with a chokebomb. On January 8, 2007, The Great Khali debuted on Raw, without Daivari. The following night, however, Daivari accompanied Khali to the ring for his match with Dreamer on ECW.

Daivari returned to SmackDown! on February 9, 2007, defeating the Cruiserweight ChampionGregory Helms in a non-title match.[29] He began wrestling in the Cruiserweight division. He was involved in a feud between Kane and The Great Khali once again promoting the Great Khali in March 2007. His first match against Kane, involved him being dragged backstage by Kane's chain and hook leaving his back with multiple bruises. A few weeks later, Daivari had a rematch with Kane and was again defeated.

Daivari was drafted back to Raw in the Supplemental Draft on June 17, 2007. He re-debuted on the June 18, 2007 edition of Raw, losing to Jeff Hardy.[30] On the July 30, 2007 episode of Raw Daivari was defeated by Cody Rhodes who had to win his match or face being fired from WWE.[31] Daivari's losing streak continued when he failed to win the position of General Manager of Raw by been eliminated early in the battle royal the week after Rhodes defeated him. Daivari then started to get on a roll on Heat (Raw's sister show) being victorious against Super Crazy and "Hacksaw" Jim Duggan. His return to Raw on September 17 saw him lose to Hacksaw Jim Duggan in a Flag match.[32]

Daivari made his debut for Professional Championship Wrestling in Arlington, Texas at PCW's Heroes 2 Legends event in November 2007. He wrestled J.T. Lamotta and "Jiggle-O" James Johnson in a triple threat match for the PCW Cruiserweight Championship. Lamotta won the match to become the new champion. He returned to PCW on February 23, 2008 at PCW's Big Bang '08 event to again wrestle a Triple Threat match for the PCW Cruiserweight Championship, this time against Robert Evans and Aaron Eagle. Eagle won and became the new champion. On September 6, 2008, it was announced by The Bussey Brothers that Daivari will return on September 20, 2008 to team with them to take on Aaron Eagle and a partner of his choosing. Eagle had chosen Action Jackson to be his tag team partner. However, Jackson was injured at the hands of Mace Malone. PCW World Heavyweight Champion, Mike Foxx, who was supposedly suspended and also Eagle's main rival, shockingly saved Eagle from an attack and announced he would be Eagle's partner. The stipulation was that if Eagle did not win he could never get another world title shot again. On September 20, Daivari and The Busseys defeated Eagle and Foxx when Foxx turned on Eagle and Daivari debuted his new finisher, the WMD (Weapon of Mass Destruction), for the victory. Afterwards, Foxx announced he would give Eagle one final shot at Sick 'n' Twisted on October 11.

On April 4, 2008 Daivari made his AMW debut in a triple threat match against Wally Darkmon and Robert Evans for the AMW Light Heavyweight Championship. Daivari won the match to become the AMW Light Heavyweight Champion. During most of 2008 he feuded with Wally Darkmon. On September 12, 2008 Daivari lost his AMW Light Heavyweight Championship to Wally Darkmon in a Casket Match. This Match was a considered a classic by some and considered by many of the AMW Fans as the match of the year.

In June 2008 Davari took part in an Irish Whip Wrestling event in the ESB Arena, Dublin where he lost in the main event to Mandrake for the IWW International Heavyweight Championship.

Bashir won the X Division Championship at No Surrender on September 14, 2008 by defeating Williams and Creed in a Three-way match.[35] At Bound for Glory IV, Bashir defeated Consequences Creed in another match for the X Division Championship. On a live edition of Impact! on October 23, Bashir successfully defended his title against Jay Lethal. After the match he attacked Rhino after being confronted by him over his political views.

Bashir at a TNA House Show in Dublin Ireland in January 2009

On October 30, 2008, it was announced that Daivari was taken to "wrestler court" at the week's Impact! tapings following a rib he played on Kip James during a flight they shared. Daivari pulled aside a flight attendant, who then announced over the loud speaker that Kip was celebrating his 65th birthday. He was taken to wrestler court because it was determined that he hadn't spent enough time in the company to pull a rib on a veteran. Brother Ray served as the judge while B.G. James represented Kip and Brother Devon represented Daivari, and agent Pat Kenney served as the bailiff for the proceedings. Daivari was found guilty and was required to supply the locker room beer and booze, which he did on Tuesday night after the tapings.[36]

On the November 13 episode of Impact!, Bashir lost the X Division Championship to Eric Young. During the match, Bashir shoved TNA Official Shane Sewell to the mat after Sewell questioned Bashir and the TNA audience of Bashir's actions during the match. Sewell became enraged, removed his shirt and attacked Bashir. This led to Eric Young hitting his Death Valley driver on Bashir and pinning him for the win and the championship. However, Bashir was awarded the championship back the following week due to Sewell's interference, thus continuing his original title reign and making Young's title reign null and void. Sewell helped Young defeat Bashir for the belt for the second time at Final Resolution on December 7. After the match Bashir bloodied Sewell and tried to leave with the belt, but was stopped by Jim Cornette who announced that he had decided to vacate the belt. At Genesis Sewell defeated Bashir in a grudge match.

On June 27, 2009, Jeremy Borash announced on his Twitter page that Daivari had signed a new multi-year deal with the company.[37]

In July 2009, Bashir formed an alliance with Eric Young, Kiyoshi and The British Invasion (Doug Williams, Brutus Magnus and Rob Terry) known as World Elite. They were also later joined by Homicide. At Final Resolution Bashir took part in the "Feast or Fired" match and was able to pick up one of the four briefcases. However, the briefcase he had picked up included a pink slip, which led to him being immediately fired from the company.[38] Daivari would later say he originally signed a two-year extension with the understanding that Jeff Jarrett would be his boss, but after Jarrett stepped down a month later, he could not see eye to eye with the new management and asked for his release.[39]

On March 29, 2011, Daivari returned to TNA won a dark match against Ricky Reyes. On May 3, Daivari made his WWE return, competing in a dark match before the SmackDown tapings, losing to Ted DiBiase.[44] In June 2011, Daivari, working under the ring name Dubai, was announced as one of the four team captains for the pilot tapings of All Wheels Wrestling.[6] At the pilot tapings on June 29, Dubai was first defeated by RPM (Jay Lethal) in a five-minute Iron Man match and then by Schwagg Dutt in an Ultimate X Match, which also included Aaron Aguilera and RPM.[45] On August 18, 2011, Daivari won a one-night tournament to become the first Varsity Pro Wrestling (VPW) Champion. In December 2011, Daivari took part in TNA's India project, Ring Ka King where he resumed the Abdul Bashir gimmick and formed The Sheiks with his brother Arya, who worked as Mustafa Bashir.[46]

On May 12, 2012, Daivari won the Big Time Wrestling Cruiserweight Championship. In October, he and Sonjay Dutt wrestled for Family Wrestling Entertainment challenging the Adrenaline Express for the FWE Tag Team Championship. On October 6, Daivari defeated Crowbar in the House of Hardcore's first show.[47] On a telecast of Portland Wrestling Uncut which aired on November 3, 2012 on Portland, Oregon station KPTV, Daivari lost via pinfall to local star Exile, though the outcome was disputed because Daivari pointed out that he had his foot on the bottom rope when he was pinned.[48] On November 30, 2013, at WrestleCade, Daivari was defeated by Jim Duggan.[49]

On April 15, 2015, Daivari made his debut at Lucha Underground as DelAvar Daivari, a wrestler from a wealthy family, being seen sitting in attendance during the night within the audience. On the April 22, 2015 episode, Daivari attacked El Texano Jr. after Texano pushed him, which costed Texano's team the trios title match. On May 13, 2015, Daivari made his in ring debut against Texano, but Daivari won by DQ after Texano attacked the referee. On May 20, 2015, Daivari hired Big Ryck as his bodyguard, attacking both of them Texano.

Daivari was born in Minnesota to Iranian parents, who immigrated to the United States in the 1970s. He speaks Persian fluently. He has an older and a younger brother. His younger brother, Arya, is also a professional wrestler.[4]